I'm not gonna lie, killing the whole party for the actions of their mage is a bit much. Regardless of her feelings towards him the facts are that they were in a situation where the party would take more losses if not for a decisive action. While I don't condone what she did, it was do or die. Miroslav is definitely in the wrong still, considering that she didn't do her duty to protect Sora who was essentially a civilian. She should be punished for more severely than the guild taking care of everything, even if they are the best ranking party, they're only C level. Surely they can find the time to grow and fill in the spot if miroslav were to be expunged or just find another mage almost as talented. The logic here doesn't make sense to me